Cellular Atypia: Abnormalities in the size, shape, and organization of cells. Increased Mitotic Activity: A higher number of cells undergoing division, indicating rapid growth. Invasion: Cancer cells infiltrate surrounding tissues, breaching boundaries like the basement membrane. Necrosis: Areas of dead cells within a tumor, indicating aggressive growth. Angiogenesis: Formation of new blood vessels to supply the tumor, facilitating its growth.
